Process of and apparatus for drying glue-like material.



L. MOONEY.

PROCESS OF AND APPARATUS FOR DRYING GLUE. LIKE MATERlAL.

PHCATION FILED JULY 28. I916.

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PROCESS OF AND APPARATUSFOR DRYING GLUE LIKE MATERIAL.

APPLICATION FILED JULY 28.1915

1,235,71 6. Patented Aug. 7, 1917.

3 SHEETS-SHEET 2.

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PROCESS OF AND APPARATUS FOR DRYING GLUE LIKE MATERIAL.

7 APPLICATION FILED JULY 28.1916 7 1,235,71 6. Patented Aug. 7, 1917.

3 SHEETSv-SHEEY 3.

Lukejfaoizeg,

' UNITED STATES PATENT onnion LUKE MOONEY, OF SEWAREN, NEW JERSEY.

PROCESS OF ANlD APPARATUS FOR DRYING GLUE-LIKE MATERIAL.

Specification of Letters Patent.

Patented Aug. *7, 19 17.

Application filed July 28, 1916. Serial No. 111,815. 1

skilled in the art to which it appertains to make and use the same.

This invention relates to a process of and an apparatus for drying gluematerial, and has for its object to provide a means for lessening thetime heretofore required in .manufacturing glue, as well as to increasethe output of the apparatus.

With these and other objects in view the invention consists in the novelcombinations of steps constituting the process, and in the novelcombinations of parts constituting the apparatus, all as will be morefully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings, forming a part of thisspecification, in

which like numerals designate like parts in all the views:

Figure 1 1s a diagrammatic plan view partly in section of an apparatusmade in accordance with this invention;

Fig.2 is an elevational sectional view of the parts shown in Fig. 1;

Fig. 3 is an elevational view of a corrugated cylinder and itsassociated parts detached; from the machine;

Fig. 4 is an enlarged sectional view of the cylinder shown in Fig. 3;

Fig. 5 is a perspective view of a partially dried sheet of glue materialcarried by a drying conveyor;

Fig.6 is ardiagrammatic plan viewof a knife suitable for stripping theglue material from the cylinder;

Fig. 7 is an enlarged detail view of the serrations of the knife shownin Fig. 6; and

Fig. 8 is a side elevational view of the parts shown in Fig. 7

1 represents a cylinder on which the hot glue or other material may becooled or gelatinized and which cylinder is to be cooled or heated onthe inside by means of a fluid conveniently admitted through the pipe 2,while being sprayed from the nozzles 3, attached to said pipe 2. Thefluid, for ex- I as for ample' brine or cold water, after being sprayedon the inside of cylinder 1, may

be removed therefrom by any suitable means example, through thedischarge pipe 4.

In order that the action of cooling or gelatinizing on the outside ofsaid cylinder may be facilitated, the circular walls 5 thereof areprovided with the corrugations 6 on which'the warm jelly constitutingthe glue, or other material .being treated, is sprayed to the desiredthickness. Said cold corrugations 6 are found in practice to not onlyprovide a much larger drying surface for the glue, and to thereforegreatly increase the output of the cylinder, but said corrugations arefound to form a corrugated sheet of glue material-such as 7, having ashape which enables it to dry more quickly than do sheets not providedwith corrugations, thus again increasing the output of the machine, allas will appear below. In' addition to these advantageous features, it isfurther found in practice that the corrugated sheets 7 deliveredfromcylinder 1 have suflicient strength to pass directly onto the dryingconveyers disclosed below, and therefore, the usual drying nets,heretofore em- 'ployed',for receiving the smooth sheets may bedispensedwith.

Further, the glue made on this machine when finally dried shows auniformly run ning thin line or streak which servesto readilydistinguish it on the market from other products.

After the warm jelly is sprayed on to the outside surfaces of thecorrugations 6 by any suitable means, such as the nozzle 10 fed by thepipe 11, and after said cylinder is rotated asby the pulley 12, theserrated knife 13 in contact with said cylinder and corrugations 6,serves to strip off the partially solid and chilled sheets 7. The.serrations 1 1 of said knife are preferably beveled off as at 15 to formthe points 16, thus enabling'said serrations to closely contact with thesurfaces of the corrugations 6, and thereby effectually clean saidcorrugations from all particles of jelly at each revolution. It resultsfrom this that succeeding congealed sheets 7 are 'not contaminated withparticles of material left over from preceding sheets, and othertroubles due to a dirty cylinder are avoided.

As the congealed sheets are thus effectually stripped from the cylinder1, they are delivered on to the short net conveyer 17 passing over therolls 18 and 19; and from said conveyer 17 each sheet passes to a dryingconveyer such as 20, 21, 22, 23, 24 and 25, mounted in any suitabledrying inclosure or tunnel 26.

Each of the convey'ers 20-25 may conveniently be formed of sprocketchains 27 at each side, and said chains joined by rods 28 as shown; forthe corrugated sheets 7. of congealed or partially formed glue is foundto have sufficient strength to rest on said rods while drying andtherefore the usual drying nets are dispensed with. This is an importantfeature of thisinvention for by this means instead of providing flatsheets of partially dried glue say 42 inches long, as heretofore hasbeen the case, these con- Veyers will receive sheets say 80, 90, or 100feet long, or say twenty-five times as long as has heretofore beendeemed possible; thus they again greatly increase the output of themachine. I

In order to still further increase the output of the machine, theplurality of long time, so that sheets 7 of corrugated or partiallyformed glue may be delivered to said long conveyers in succession, orone at a time, and allowed to remam on each of said long conveyers forseveral hours, or unt1l dried. The Sheet 7 on the highest conveyer 25for example, can thus be subjected to a drying. action in the tunnel 26,while the other conveyers 2124 are being loaded.

In order to ena lo the operator to thus successively load t e conveye-rs20-,25 the cylinder 18 and short conveyer 17 are carried on the supportsmounted on the screw or other elevating means 36, 37, 38 and 39,carrying respectively the bevel pinions 40, 41, 42-, and 43, meshingrespectively with the bevel gears 44, 45, 46 and 47. The gears 44 and 46are carried at opposite ends of the shaft 48, and the gears and 47 arecarried at opposite ends of the shaft 49.

A power pulley 50 is conveniently mounted on the shaft 49 and also thegear 51 which meshes with the gear 52, meshing with the gear 53 mountedon the shaft 48.-

It will be 'clear from the foregoing that power "applied to the pulley50 will rotate the screw shafts 3639 and thus raise and lower thecylinder 1 and conveyer 17, to cause the latter to register with anydesired long conveyer such for example as 25. The conveyer 17 being inregister with the conveyer 25, and the cylinder 1 being rotated as bypower applied to the pulley 12 for example, while glue material issprayed on to the corrugations 6 through the nozzle 10, then the knife13 will cause the corrugated sheet 7 of partially formed glue to leavethe corrugations 6, to pass to the net conveyer 17, and from saidconveyer 17 on to the conveyer 25, where the corrugations or ribs willextend across or transversely of the rods 28, as shown in Fig. 5, andthus support the weight of the wet sheet 7 although the latter is notvery strong. In order to facilitate the operation, and also in order tohandle long' sheets 7 of the partially formed glue instead of shortsheets as heretofore, the conveyer 25 while receiving the said sheet isrun by means not shown, at the same speed as the corrugations 6 and whenthe said conveyer is filled with said sheet, the latter is cut off atthe cylinder 1 by any suitable means, not shown, and the motion of saidconveyer 25 stopped.

The cylinder 1 and net conveyer 17 are next lowered to register with theconveyer 24, and the same cycle of operations repeated, while the sheet7 on conveyer 25 is left to dry in the tunnel 26. In the same way eachsuccessive drying conveyer 23, 22, 21, 20,

. etc, is loaded wlth a sheet while the preceding sheets are drying.

A sufficient number of drying conveyors are preferably, although ofcourse, not necessarily provided to receive the entire output of thecylinder 1 during the period required for a single sheet 7 .tocompletely dry. By this means the cylinder 1 may be worked at fullcapacity at least through the day, and no time lost in the drying operations.

At the end of the drying conveyers 2025 opposit the cylinder 1, thereislocated a breaking mechanism 65 having a base 66 adapted to be moved upand down to suecessively register with said drying conveyers, as by thescrew means 67 receiving power from any suitable means diagram maticallyillustrated at 68 and 69. 70'represents a grinding mill adapted toreceive the broken pieces of glue from the breaker 65.

The operation of the mechanism will be clear from the foregoing but maybe briefly summarized as follows Hot glue material is sprayed on to thecorrugated cylinder 5 through the nozzle 10 while the said cylinder iscooled on the inside and rotated by any suitable means as for examplethe pulley 12. A knife 13 strips the material from the cylinder and thelatter is received on the net conveyer 17 which is brought into registersuccessively with the drying eonveyers numbered from 20 to 25. Thecylinder 1 and net conveyer 17 are raised and lowered by the screw meansillustrated to bring the said conveyer 17 in proper register with thedrying con- Veyers and while one drying conveyer such as 25 is beingthus loaded it is moved by means not shown at the same rate Of speed asthat imparted to the periphcry of the cylinder 1. The glue material bethe case, so that it may be supported by" the cross rods 28 whileundergoing a drying operation in the tunnel 26. The corrugations 6 onthe portion 5 of cylinder 1 not only impart strength-to the sheets 7 ofpartially formed glue but also increase the cooling surface and thusincrease the output of the cylinder. In addition to the above, while thesheets 7 a-reresting on the drying conveyers, these said corrugationsfurnish a better passage for the air and in fact, expose a greatersurface to the air and thus facilitate the drying operation in the Aftera conveyer such as 25 has been loaded with a sheet of material'such as 7the said sheet is cut from the cylinder surface 5 by any suitable meansnot shown, and the motion of said conveyer 25 stopped. The cylinder 1and conveyer 17 are next brought successively in register with theotherdrying conveyers'which are each in turn loaded with a' sheet such as 7while those already loaded are being subjected to' a drying operation.After the *first sheet 7 ,such for example as that loaded on to theconveyer 25 has become thoroughly dry, in the tunnel 26, that conveyermay again be started up and the sheets 7 forced over into the breaker'65 as indicated in Fig. 2, whereupon the mechanism breaks up the saidsheet into suitable sizes and the articles of said sheet are permittedto fall own through the passage 71 into the grinding mill 70 whereuponthe said particles of glue are ground to a suitable fineness.

It is obvious that those skilled in the art may vary the details ofconstruction as well as the arrangement of parts without departing fromthe spirit of the invention, and therefore, it is not desired to belimited to the above disclosure except as may be required by the claims.

What is claimed is I 1. The process of drying liquid glue ma terialwhich consists in formin the same 7 into a corrugated layerwhile subecting said der; means for cooling the corrugated surfacesof saidcylinder; means for applying liquid glue material to said corrugatedsurfaces to con eal the same; meansto strip the congeale corrugatedmaterial in sheets from said surfaces; a conveyer for rece1v-.

I scribed.

ing said stripped sheet material; and a plurality of drying conveyersadapted to suc cessively receive sheets of stripped material from saidcorrugated surfaces, substantially as described. I

3. In an apparatus for drying glue mate rial the combination of acorrugated cylinder; means for cooling the corrugated surfaces of saidcylinder; means for applying liquid glue material to said corrugatedsurfaces to congeal the same; means to strip the congealed andcorrugated material in sheets from said surfaces; a conveyer forreceiving said stripped sheet material; means for moving said cylinderup and down; and a plurality of drying conveyers adapted to successivelyreceive sheets of stripped material from said corrugated surfaces,substantially as described.

4. In an apparatus for drying glue material the combination of acorrugated cylinder; means for cooling the corrugated surfaces of saidcylinder; means for applying liquid glue material to said corrugatedsurfaces to congeal the same; means to'strip the congealed andcorrugated material in sheets from said surfaces; a conveyer forreceiving said stripped sheet material;

means, for moving said cylinder and first' named conveyer up and down;and a plurality of drying conveyers adapted to successively receivesheets of stripped material from said corrugated surfaces, substantiallyas described.

5. In an apparatus for drying glue material the combination of acorrugated cylinder; means for rotating said cylinder; means for coolingsaid cylinder; means for applying liquid glue material to the corrugatedsurfaces to congeal the same in corrugated layers; a knife to strip saidlayers from said surfaces and form said layers into corrugated sheets ofglue material; a plurality of drying conveyers; and means to move saidcylinder to successively register with said conveyers whereby saidcorrugated sheets may be delivered successivel to said conveyers,substantially as describe 6; In an apparatus for drying glue materialthe combination of a corrugated cylinder; means for rotating. saidcylinder; means for cooling said cylinder; means for applying liquidglue material to the corrugated surfaces to congeal the same incorcorrugated sheets of glue material; a plurality of drying conveyers;means to move said cylinder to successively register with said conveyerswhereby said corrugated sheets may be delivered successively to saidconveyers; and means associated with said conveyers for breaking up saidsheets after they have been dried, substantianlly' as de- 7. In anapparatus for drying glue mategated layers; a knife to strip said layersfrom said surfaces and form said layers into corrugated sheets of gluematerial; a plurality of drying conveyers; comprising rod members tosupport said sheets; means to move said cylinder to successivelyregister With said conveyers whereby said corrugated sheets may bedelivered successively to said conveyers; a breaker associated With saidconveyers adapted to receive said sheets after the drying operation hasbeen completed; and means ior causing said breaker to successivelyregister with said conveyers, substantially as described. I

In testimony whereof I afiix my signature,

in presence of two Witnesses:

LUKE MOONEY. Witnesses:

HENRY H. HILL, Jr, WM. L. HARNED.

